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Carbs, Lipids, Proteins, and Nucleic Acids

Total сұрақ: 68

Worksheet time: 34mins

Аты
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Күн
1.

Which elements do carbohydrates contain?

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Nitrogen

e)

Phosphorus

2.

Which of the following are types of carbohydrates?

a)

Sugar

b)

Starch

c)

Fiber

d)

Amino acids

e)

Enzymes

3.

Which of the following are the monomers of carbohydrates?

a)

Simple sugars/monosaccharides

b)

Amino acids

c)

Peptide bonds

d)

Glycerol

4.

What is the chemical formula for glucose (a monosaccharide)?

a)
b)
c)
5.

What is the ratio of hydrogen atoms to oxygen atoms in carbohydrates?

a)

2:1

b)

3:2

c)

22:10

d)

4:3

6.

What is the name of the simple sugar needed for cell respiration to create ATP?

a)

Glucose

b)

Fructose

c)

Maltose

d)

DNA

7.

If carbohydrates are broken down into small units, then why are these units often joined back together?

a)

So extra monosaccharides can be joined and stored for later use

b)

Because monosaccharides are too small to fit through the cell membrane

c)

Because monosaccharides are too small to be used

d)

So extra monosaccharides can be joined and transform into organs

8.

Why do living organisms need to digest carbohydrates into small units?

a)

So they are small enough to pass through the cell membrane

b)

So they are small enough to be dissolved in the blood stream

c)

So they are small enough to be used by the liver

9.

What is the name of this process?

a)

Dehydration synthesis

b)

Hydrolysis

c)

Enzyme digestion

10.

2 monosaccharides joined is called a...

a)

Disaccharide

b)

Polysaccharide

c)

Polypeptide

d)

Dipeptide

11.

What is the chemical formula for a disaccharide?

a)
b)
c)
12.

Which of the following are examples of polysaccharides?

a)

Glycogen

b)

Starch

c)

Glucose

d)

Maltose

13.

A process by which water is added to polymers to break them into monomers.

a)

Hydrolysis

b)

Dehydration synthesis

14.

A process by which water is removed from monomers to form polymers.

a)

Dehydration synthesis

b)

Hydrolysis

15.

Once polysaccharides have been formed and stored, why would living organisms need to break them back down into monosaccharides through hydrolysis?

a)

To use them as energy in case you haven't eaten in a while

b)

To replace cells if they have been destroyed

c)

To create hormones

d)

To provide genetic instructions

16.

Can lipids dissolve in water? Why or why not?

a)

No, because they are non-polar

b)

Yes, because they are polar

c)

No, because they are polar

d)

Yes, because they are non-polar

17.

Which elements do lipids contain?

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Nitrogen

e)

Phosphorus

18.

Examples of lipids include:

a)

Fats

b)

Phospholipids

c)

Cholesterol

d)

Pasta

e)

Candy

19.

Which of the following do fats do?

a)

Store energy

b)

Insulate body

c)

Cushion organs

20.

Food examples of fats include:

a)

Butter

b)

Oil

c)

Candy

d)

Fruits

21.

What are the monomers of lipids?

a)

1 Glycerol and 3 fatty acids

b)

Monosaccharides

c)

Amino acids

d)

Nucleotides

22.

Which monomer is this?

a)

Glucose

b)

Glycerol

c)

Fatty acid

d)

Amino acid

23.

Which monomer is this?

a)

Glycerol

b)

Nucleotide

c)

Fatty acid

d)

Amino acid

24.

Which monomer is this?

a)

Fatty acid

b)

Glycerol

c)

Amino acid

d)

Monosaccharide

25.

In a lipid, the ratio of hydrogen to oxygen is...

a)

Greater than 2:1

b)

2:1

c)

4:6

d)

1:1

26.

Saturated fats:

a)

Are solid at room temperature

b)

Originate from animal sources

c)

Lead to the production of cholesterol, which may lead to plaque buildup in the arteries

d)

Are liquid at room temperature

e)

Do not lead to the production of cholesterol

27.

Carbon to carbon bonds are single in:

a)

Saturated fats

b)

Unsaturated fats

28.

Unsaturated fats:

a)

Are liquid at room temperature

b)

Originate from plant sources

c)

Do not lead to the production of cholesterol

d)

Originate from animal sources

e)

Lead to the production of cholesterol, which may lead to plaque buildup in the arteries

29.

There is at least one double carbon to carbon bond in:

a)

Unsaturated fats

b)

Saturated fats

30.

This is a(n)...

a)

Saturated fat

b)

Unsaturated fat

31.

This is a(n)...

a)

Unsaturated fat

b)

Saturated fat

32.

Meat, dairy, nuts, eggs, and beans are all:

a)

Proteins

b)

Carbohydrates

c)

Lipids

d)

Nucleic acids

33.

Proteins...

a)

Make up muscles, skin, hair, nails, hormones, enzymes, and antibodies

b)

Provide long-term energy

c)

Make up genetic information

34.

Would proteins ever be used for energy?

a)

No, never

b)

Yes, only when carbohydrates and lipids are not available

c)

Yes, only when nucleic acids are not available

35.

Which elements do proteins contain?

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Nitrogen

e)

Sulfur (sometimes)

36.

What are the monomers of proteins?

a)

Amino acids

b)

Nucleotides

c)

Monosaccharides

d)

Fatty acids

37.

How many different types of amino acids are there?

a)

10

b)

20

c)

100

d)

3

38.

What are the three parts of an amino acid?

a)

Carboxyl group

b)

Amino group

c)

Variable group

d)

Carbon group

39.

The carboxyl group of an amino acid is represented by which of the following?

a)
b)
c)
40.

The amino group of an amino acid is represented by which of the following?

a)
b)
c)
41.

The variable group of an amino acid is represented by which of the following?

a)
b)
c)
42.

A _________ bond is a bond between 2 amino acids.

a)

Peptide

b)

Carboxyl

c)

Covalent

d)

Polypeptide

43.

A dipeptide is made of ______ amino acids joined by a peptide bond.

a)

2

b)

20

c)

50

d)

3 or more

44.

A polypeptide is made of _______ amino acids.

a)

2

b)

3 or more

c)

50

d)

22

45.

Which of the following shows a peptide bond?

a)
b)
c)
d)
46.

Where in the cell are amino acids joined together?

a)

Ribosomes

b)

Mitochondria

c)

Nucleus

d)

Nucleolus

47.

Which elements do nucleic acids contain?

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Nitrogen

e)

Phosphorus

48.

What are the two types of nucleic acids?

a)

DNA

b)

RNA

c)

Fats

d)

Amino acids

e)

Nucleotides

49.

What does DNA stand for?

a)

Deoxyribonucleic acid

b)

Ribonucleic acid

c)

Dogs Need Apples

50.

What does RNA stand for?

a)

Ribonucleic acid

b)

Deoxyribonucleic acid

c)

Rodents Need Attention

51.

What are the monomers of nucleic acids?

a)

Nucleotides

b)

Amino acids

c)

1 glycerol and 3 fatty acids

d)

Monosaccharides

52.

What are the 3 parts of a nucleotide?

a)

Phosphate group

b)

Sugar

c)

Nitrogen base

d)

Carboxyl group

e)

Variable group

53.

What does A represent in this model of a nucleotide?

a)

Phosphate group

b)

Sugar

c)

Nitrogen base

54.

What does B represent in this model of a nucleotide?

a)

Sugar

b)

Phosphate group

c)

Nitrogen group

55.

What does C represent in this model of a nucleotide?

a)

Nitrogen base

b)

Phosphate

c)

Sugar

56.

________ contains instructions for building protein.

a)

RNA

b)

DNA

57.

DNA's structure: Nucleotides are joined together in the shape of a twisted ladder called a:

a)

Double helix

b)

Single helix

c)

GCAT

d)

ATGC

58.

What are the nitrogen bases in DNA?

a)

Adenine

b)

Thymine

c)

Cyotsine

d)

Guanine

e)

Uracil

59.

What is DNA's base-pair rule?

a)

A-T, G-C

b)

A-U, G-C

c)

G-T, C-A

d)

A-G, C-G

60.

_______ is a copy of DNA's instructions, so protein can be assembled at a ribosome.

a)

RNA

b)

An amino acid

c)

Ribose

d)

Deoxyribose

61.

RNA's structure: Nucleotides are joined together in the shape of a:

a)

Double helix

b)

Single helix

c)

Ladder

d)

Twisted ladder

62.

What are the nitrogen bases in RNA?

a)

Adenine

b)

Guanine

c)

Cytosine

d)

Uracil

e)

Thymine

63.

What is RNA's base-pair rule?

a)

A-U, G-C

b)

A-T, G-U

c)

A-G, C-T

d)

G-A, C-U

64.

DNA contains the sugar:

a)

Deoxyribose

b)

Ribose

c)

Glucose

d)

Sucrose

65.

RNA contains the sugar:

a)

Deoxyribose

b)

Ribose

c)

Sucrose

d)

Fructose

66.

Where is DNA located?

a)

Nucleus

b)

Ribosome

c)

Cell membrane

d)

Mitochondria

67.

Where is RNA located?

a)

Nucleus

b)

Ribosome

c)

Mitochondria

d)

Golgi body

68.

Bread and pasta are food examples of:

a)

Proteins

b)

Carbohydrates

c)

Lipids

d)

Nucleic acids

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